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WO2004040403A3 - Lower complexity layered modulation signal processor - Google Patents
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WO2004040403A3 - Lower complexity layered modulation signal processor - Google Patents

Lower complexity layered modulation signal processor Download PDF

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Publication number
WO2004040403A3
WO2004040403A3 PCT/US2003/032264 US0332264W WO2004040403A3 WO 2004040403 A3 WO2004040403 A3 WO 2004040403A3 US 0332264 W US0332264 W US 0332264W WO 2004040403 A3 WO2004040403 A3 WO 2004040403A3
Authority
WO
WIPO (PCT)
Prior art keywords
layer signal
upper layer
lower layer
signal processor
modulation signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2003/032264
Other languages
French (fr)
Other versions
WO2004040403A2 (en
Inventor
Ernest C Chen
Weizheng Wang
Guangcai Zhou
Tung-Sheng Lin
Joseph Santoru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T MVPD Group LLC
Original Assignee
DirecTV Group Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/844,401 external-priority patent/US7209524B2/en
Priority to EP03809944A priority Critical patent/EP1563620B1/en
Priority to AU2003301717A priority patent/AU2003301717A1/en
Priority to ES03809944T priority patent/ES2398213T3/en
Priority to CA002503530A priority patent/CA2503530C/en
Priority to US10/532,632 priority patent/US7512189B2/en
Application filed by DirecTV Group Inc filed Critical DirecTV Group Inc
Publication of WO2004040403A2 publication Critical patent/WO2004040403A2/en
Publication of WO2004040403A3 publication Critical patent/WO2004040403A3/en
Anticipated expiration legal-status Critical
Priority to NO20052406A priority patent/NO335093B1/en
Priority to US12/329,456 priority patent/US7706466B2/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3488—Multiresolution systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/183—Multiresolution systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0061—Closed loops remodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A method and apparatus for transmitting and receiving a coded signal having an upper layer signal (130) and a lower layer signal (1312) is disclosed. The method comprises the steps of combining the upper layer signal and the lower layer signal, encoding the combined upper layer signal and lower layer signal, delaying the upper layer signal, modulating the delayed upper layer signal, modulating the lower layer signal, transmitting the delayed upper layer signal and transmitting the lower layer signal. The apparatus comprises an encoder (1301), for encoding a combined upper layer signal and lower layer signal, a delay communicatively coupled to the encoder, for delaying the upper layer signal, a first modulator, for modulating the upper layer signal, a second modulator, for modulating the lower layer signal, a transmitter (1314), communicatively coupled to the first modulator, for transmitting the delayed upper layer signal, and a second transmitter (13, 16), communicatively coupled to the second modulator.
PCT/US2003/032264 2001-04-27 2003-10-10 Lower complexity layered modulation signal processor Ceased WO2004040403A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP03809944A EP1563620B1 (en) 2002-10-25 2003-10-10 Lower complexity layered modulation signal processor
AU2003301717A AU2003301717A1 (en) 2002-10-25 2003-10-10 Lower complexity layered modulation signal processor
ES03809944T ES2398213T3 (en) 2002-10-25 2003-10-10 Low complexity layer modulation signal processor
CA002503530A CA2503530C (en) 2002-10-25 2003-10-10 Lower complexity layered modulation signal processor
US10/532,632 US7512189B2 (en) 2001-04-27 2003-10-10 Lower complexity layered modulation signal processor
NO20052406A NO335093B1 (en) 2002-10-25 2005-05-13 Layered modulation signal processor with lower complexity
US12/329,456 US7706466B2 (en) 2001-04-27 2008-12-05 Lower complexity layered modulation signal processor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/844,401 US7209524B2 (en) 2001-04-27 2001-04-27 Layered modulation for digital signals
US42133102P 2002-10-25 2002-10-25
US60/421,331 2002-10-25

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US09/844,401 Continuation-In-Part US7209524B2 (en) 2001-04-27 2001-04-27 Layered modulation for digital signals

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US10532632 A-371-Of-International 2003-10-10
US12/329,456 Continuation US7706466B2 (en) 2001-04-27 2008-12-05 Lower complexity layered modulation signal processor

Publications (2)

Publication Number Publication Date
WO2004040403A2 WO2004040403A2 (en) 2004-05-13
WO2004040403A3 true WO2004040403A3 (en) 2004-07-22

Family

ID=34312080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/032264 Ceased WO2004040403A2 (en) 2001-04-27 2003-10-10 Lower complexity layered modulation signal processor

Country Status (9)

Country Link
US (2) US7512189B2 (en)
EP (1) EP1563620B1 (en)
AR (2) AR045708A1 (en)
AU (1) AU2003301717A1 (en)
CA (1) CA2503530C (en)
ES (1) ES2398213T3 (en)
NO (1) NO335093B1 (en)
TW (1) TWI324467B (en)
WO (1) WO2004040403A2 (en)

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